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Welch
从经典功率谱估计周期图法原理入手,从理论上分析了其存在的局限性,借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力,进行实验仿真,比较不同的窗函数,不同的数据长度对Welch法谱估计质量的影响,并分析了造成这些影响的原因。(The paper mainly introduces the principles of Periodogram method of classical PSD estimation,analyzes the deficiency of Periodogram method in theory,and makes use of Welch to amend Perodogram method. By the use of simulation in Matlab, the impacts of different window function and different lenghth of data on estimation quality of Welch are discussed and the reasons of the impacts are analyzed.)
- 2010-06-16 08:27:53下载
- 积分:1
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matlab_ukf_utilities
说明: 卡尔曼滤波的一个典型实例是从一组有限的,对物体位置的,包含噪声的观察序列预测出物体的坐标位置及速度. 在很多工程应用(雷达, 计算机视觉)中都可以找到它的身影. 同时,卡尔曼滤波也是控制理论以及控制系统工程中的一个重要话题.
比如,在雷达中,人们感兴趣的是跟踪目标,但目标的位置,速度,加速度的测量值往往在任何时候都有噪声.卡尔曼滤波利用目标的动态信息,设法去掉噪声的影响,得到一个关于目标位置的好的估计。
(kalman ukf matlab)
- 2011-03-05 22:05:53下载
- 积分:1
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SABP汇率预测
说明: 此代码通过模拟退火算法优化BP神经网络进行汇率预测(This code optimizes BP neural network to predict exchange rate by simulated annealing algorithm)
- 2021-04-12 00:18:57下载
- 积分:1
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bcls
Calculation of gradient and objective for Least Squares (binary
classification)
- 2009-10-22 13:20:43下载
- 积分:1
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KmeansAlgorithm
说明: 实现k均值聚类算法,本算法可以随机设置初始测试集,也可以随机选取初始类。(K means algorithm The algorithm can set intial data set randomly。also can randomly choice initial data cluster )
- 2010-03-30 10:54:37下载
- 积分:1
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soliton3
matlab中求解一维非线性方程中孤子的演化(matlab for solving the sub-one-dimensional nonlinear evolution side Cheng Zhonggu)
- 2011-07-10 17:37:47下载
- 积分:1
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MATLAB
Reading wave file in matlab and putting into packets.
- 2010-11-16 02:19:20下载
- 积分:1
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km
说明: matlab中电气化铁路上每1km长的牵引网的等效阻抗模型。(matlab in every 1km long electrified railway traction network equivalent impedance model.)
- 2013-07-13 18:54:11下载
- 积分:1
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fengdianyuce1
arma时间序列预测,可以用来通过过去的数据预测未来的风电功率(arma,you can use it to predict the future wind power )
- 2016-03-14 18:26:21下载
- 积分:1
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DSSS
(1) 产生数值为±1的用户随机数据;给出Matlab下对应的模块;
(2) 产生并给出64×64的Walsh矩阵,作为用户接入的扩频码;
(3) 利用上述一个用户的扩频码和用户数据演示扩频过程;给出Simulink工作框图;
(4) 利用FFT,计算并画出基带数据和扩频信号的频谱(在一个图中给出);
((1) value of ± 1 generated random data users given under the corresponding Matlab module (2) generation and gives the Walsh 64 × 64 matrix, as the user access to the spreading code (3) the use of the a user' s spreading code and spread spectrum user data presentation process given work Simulink block diagram (4) the use of FFT, calculate and draw the base-band spectrum data and the spread spectrum signal (given in a diagram) )
- 2010-06-29 00:21:25下载
- 积分:1